イギリスの暗号資産課税
Taxinger が申告先の国で適用する規定を平易な言葉で。何が、いつ課税され、どの申告書に記入するのかをご説明します。
GBイギリス
SA108にそのまま使えます。
2023年4月から施行されている規定です。要約であり、税務アドバイスではありません。
- 保有期間の定めはありません。どれだけ長く保有していても利益は課税されます
- 年間 £3,000 の非課税枠を超える利益は、ほかの所得に応じて18%又は24%で課税されます
- 譲渡は、まず同日の取得、次にその後30日間の取得、最後にプールされた平均取得価額と対応づけます
- ステーキング、レンディング、マイニングの報酬は受領時に雑所得となります。その種の所得は年間 £1,000 までは課税されません
2023-24年分に適用される法律
2026/11/01に出典と照合して確認
申告書:SA108 2023 and SA108 2024、SA100 2023 to SA100 2026、SA101 2023 to SA101 2026
- 暗号資産の法的な位置づけ財産や資産について書かれた規定は、その国の法律が暗号資産をそれに当たるとしている場合にのみ暗号資産に適用されます。
「Tokens are digital and therefore intangible, but count as a 'chargeable asset' for Capital Gains Tax if they're both: capable of being owned, have a value that can be realised」
2026/11/06に出典で確認
HMRC Cryptoassets Manual CRYPTO10100 — what HMRC calls a cryptoasset
「Cryptoassets (also referred to as 'tokens' or 'cryptocurrency') are digital representation of value that relies on a cryptographically secured distributed ledger or similar technology to validate and secure transactions」
2026/11/06に出典で確認
- 価額の換算に用いる相場
「Reasonable care should be taken to arrive at an appropriate valuation for the transaction using a consistent methodology. Details of the valuation methodology should be kept.」
2026/11/01に出典で確認
- どの単位から売却したとみなすか
「all the securities so acquired shall be treated as acquired by a single transaction and all the securities so disposed of shall be treated as disposed of by a single transaction, and … all the securities so acquired shall, so far as their quantity does not exceed that of the securities so disposed of, be identified with those securities」
2026/11/01に出典で確認
「if within the period of thirty days after the disposal the person making it acquires securities of the same class, the securities disposed of shall be identified— (a) with securities acquired by him within that period, rather than with other securities」
2026/11/01に出典で確認
「the disposal shall be treated as diminishing a quantity of securities subsequently acquired, and as so diminishing any quantity so acquired at an earlier date, rather than one so acquired at a later date」
2026/11/01に出典で確認
「Non-Fungible Tokens (NFTs) are separately identifiable and so are not pooled and no matching rules are applied.」
2026/11/01に出典で確認
- どの保有分をまとめて計算するか
「Any number of securities of the same class acquired by the same person in the same capacity shall for the purposes of this Act (subject to express provision to the contrary) be regarded as indistinguishable parts of a single asset」
2026/11/01に出典で確認
- 取得価額を個別に保つ単位
CRYPTO22200 — every unit of a token is in that token's pool, and each pool has one cost
「Each type of token will need its own pool … its own 'pooled allowable cost' associated with it.」
2026/11/01に出典で確認
- 保有により売却が非課税となる場合
「Chargeable gains accruing in a tax year to an individual are charged to capital gains tax at a rate of 18% or 24%」
2026/11/01に出典で確認
- 交換の価額
- 各種の交換の意味
「selling tokens for money … exchanging tokens for a different type of token … using tokens to pay for goods or services … giving away tokens」
2026/11/01に出典で確認
「Where the recipient of the tokens has the ability to deal with the tokens received as they want then this will be a strong indicator that the recipient has acquired the beneficial ownership」
2026/11/01に出典で確認
「if the DeFi lending platform is specifically restricted from dealing with the tokens received as collateral, this will be a strong indicator that the DeFi lending platform has not acquired beneficial ownership of those tokens. Therefore the borrower has retained beneficial ownership of the tokens and has not made a disposal.」
2026/11/01に出典で確認
CRYPTO22110 — a one-way transfer between ledgers: the cost rolls forward under TCGA 1992 s.43
「HMRC's view is that TCGA92/S43 applies to this type of transaction. The allowable costs in respect of the first cryptoasset are attributed in full to the second cryptoasset.」
2026/11/01に出典で確認
「HMRC does not consider cryptoassets to be currency or money … sections 252 and 269 Taxation of Chargeable Gains Act 1992 do not apply」
2026/11/01に出典で確認
- 報酬、エアドロップその他の所得
ITTOIA 2005 s.783AH with s.783AJ(2), s.783AJ(3)
「The amount of miscellaneous income chargeable to income tax for the tax year is— (a) the miscellaneous income for the tax year, less (b) the deductible amount. … Subject to section 783AK, the deductible amount is equal to the individual's trading allowance for the tax year.」
2026/11/04に出典で確認
ITTOIA 2005 s.783AM(1), s.783AM(2); ITA 2007 s.989
「An individual may elect for partial relief to be given for a tax year … An election must be made on or before the first anniversary of the normal self-assessment filing date for that tax year.」
2026/11/04に出典で確認
CRYPTO21200, CRYPTO21150 — staking and mining rewards where the activity is not a trade
「the pound sterling value (at the time of receipt) of any tokens awarded will be taxable as income (miscellaneous income)」
2026/11/01に出典で確認
CRYPTO21250 — an airdrop, the one fact this law asks the taxpayer
「Income Tax may not apply if they're received: without doing anything in return (for example, not related to any service or other conditions) … Airdrops that are provided in return for, or in expectation of, a service are subject to Income Tax」
2026/11/01に出典で確認
「Subsection (1) shall not apply to the acquisition of an asset if— (a) there is no corresponding disposal of it, and (b) there is no consideration in money or money's worth or the consideration is of an amount or value lower than the market value of the asset」
2026/11/01に出典で確認
「For the purposes of this Chapter, an individual's trading allowance for a tax year is £1,000.」
2026/11/01に出典で確認
- 分岐で得たコインの取得価額
「Any allowable costs in the section 104 pool of the original cryptoassets are split between the two section 104 pools for the original tokens and the new tokens … Costs must be split on a just and reasonable basis under section 52(4) TCGA 1992. HMRC does not prescribe any particular apportionment method.」
2026/11/01に出典で確認
- 贈与により取得した暗号資産の取得価額
「a person's acquisition or disposal of an asset shall for the purposes of this Act be deemed to be for a consideration equal to the market value of the asset— (a) where he acquires or, as the case may be, disposes of the asset otherwise than by way of a bargain made at arm's length, and in particular where he acquires or disposes of it by way of gift」
2026/11/01に出典で確認
「A and B are to be treated as if B acquired the asset from A for a consideration of such amount as would secure that on the disposal neither a gain nor a loss would accrue to A」
2026/11/01に出典で確認
- 暗号資産を贈与した場合
「a person's acquisition or disposal of an asset shall for the purposes of this Act be deemed to be for a consideration equal to the market value of the asset— (a) where he acquires or, as the case may be, disposes of the asset otherwise than by way of a bargain made at arm's length, and in particular where he acquires or disposes of it by way of gift」
2026/11/01に出典で確認
「A and B are to be treated as if B acquired the asset from A for a consideration of such amount as would secure that on the disposal neither a gain nor a loss would accrue to A」
2026/11/01に出典で確認
- 役務の対価として暗号資産を受け取った場合
「Where cryptoassets are provided in the form of a readily convertible asset the employer is therefore required to account to HMRC for the tax and National Insurance contributions due on the best estimate of the value of that asset.」
2026/11/01に出典で確認
TCGA 1992 s.17(1)(b) with gov.uk, "Check if you need to pay tax when you receive cryptoassets"
「If you sell the cryptoasset that you've paid Income Tax on at a later date, you should calculate Capital Gains Tax as normal on any increase in the value of the tokens since you received them.」
2026/11/01に出典で確認
- 取得に要した手数料
TCGA 1992 s.38(1)(a) with CRYPTO22150
「the amount or value of the consideration, in money or money's worth, given by him or on his behalf wholly and exclusively for the acquisition of the asset, together with the incidental costs to him of the acquisition」
2026/11/01に出典で確認
- 譲渡に要した手数料
「You can accept that apportioning this type of fee equally between the assets disposed of and the assets acquired (that is a 50/50 split) is just and reasonable in these circumstances」
2026/11/11に出典で確認
- ネットワーク手数料の支払
「Fees satisfied in tokens … the fee is given as consideration for a service … market value is to be used」
2026/11/01に出典で確認
- デリバティブ取引の損益
ITA 2007 s.152 with s.153; HMRC CRYPTO21300
「But a deduction for that purpose is to be made only from the person's relevant miscellaneous income」
2026/11/02に出典で確認
「If in a tax year (“the loss-making year”) a person makes a loss in a relevant transaction, the person may make a claim for loss relief against relevant miscellaneous income」
2026/11/02に出典で確認
「So far as a claim for loss relief against relevant miscellaneous income concerns the amount of the loss for a tax year, it must be made not more than 4 years after the end of the tax year」
2026/11/02に出典で確認
「Where a derivative is not within Part 7, and is not held for the purposes of a trade or property business, two possibilities for taxation remain - profits may constitute miscellaneous income (formerly Case VI Schedule D), or they may be taxable as capital gains. Normally, taxation as miscellaneous income would take priority over any capital gains charge.」
2026/11/01に出典で確認
「his outstanding obligations under any futures contract entered into in the course of that dealing … shall be regarded as assets to the disposal of which this Act applies」
2026/11/02に出典で確認
「No liability to income tax arises as a result of Chapter 8 of Part 5 (income not otherwise charged) in respect of a gain arising to a person in the course of dealing in— (a) commodity or financial futures」
2026/11/02に出典で確認
- 利益に対する税率
TCGA 1992 s.1H(3) with s.1I(1)
「If any of an individual's income for a tax year is chargeable to income tax at a higher income tax rate, gains accruing to the individual in the tax year are charged at the rate of 24%」
2026/11/01に出典で確認
「(a) in respect of upper rate gains accruing to a person in a tax year, is 18%, and (b) in respect of gains accruing to a person in a tax year which are not upper rate gains, is 10%」
2026/11/01に出典で確認
「the rate of capital gains tax in respect of gains accruing to a person in a tax year is 18% … If income tax is chargeable at the higher rate or the dividend upper rate in respect of any part of the income of an individual for a tax year, the rate of capital gains tax in respect of gains accruing to the individual in the year is 28%」
2026/11/01に出典で確認
- 年分の税額の計算方法
「Capital gains tax is charged on the total amount of chargeable gains accruing to a person in a tax year after deducting— (a) any allowable losses accruing to the person in the tax year, and (b) so far as not previously deducted under this subsection, any allowable losses accruing to the person in any previous tax year.」
2026/11/01に出典で確認
「If an individual is (or, apart from this section, would be) chargeable to capital gains tax for a tax year on chargeable gains, the annual exempt amount for the year is to be deducted from those gains (but no further than necessary to eliminate them).」
2026/11/01に出典で確認
「An individual shall not be chargeable to capital gains tax in respect of so much of his taxable amount for any year of assessment as does not exceed the exempt amount for the year … Where … the amount of the adjusted net gains for any year of assessment is equal to or less than the exempt amount for that year, no deduction shall be made for that year in respect of — (a) any allowable losses carried forward from a previous year」
2026/11/01に出典で確認
TCGA 1992 s.16(2A) — a loss is allowable only once it is notified, and the return is that notice
「A loss accruing to a person in a year of assessment shall not be an allowable loss for the purposes of this Act unless, in relation to that year, he gives a notice to an officer of the Board quantifying the amount of that loss」
2026/11/01に出典で確認